Marble Sort Level 684 — Walkthrough and Solution

Marble Sort Level 684 is a two-stage puzzle. The top half is sealed by two giant Panels, each requiring 23 box clears. Your first goal is to open them by methodically clearing lower boxes, using only the visible top-row marbles and the hidden Mystery row beneath the Panels. The key is to feed Red and Yellow boxes first, ignore the Purple, Green, Blue, and White decoys, and dig into the question marks to keep the Conveyor Belt flowing.

The board starts with four lower columns. From left to right: a Red box, a Yellow box, a second Red box, and a third Red box. The top tray shows a row of marbles: Purple, Green, Red, White, Yellow, Blue, and White. Above that, a horizontal strip of Mystery tiles hides the colors you need. Your only safe early moves are the visible Red and Yellow; everything else is a trap until their matching boxes appear.

Marble Sort Level 684 Walkthrough

Your lower columns hold three Red boxes and one Yellow box. The top tray's visible row gives you exactly one Red cluster and one Yellow cluster. The Purple, Green, Blue, and White marbles are not needed yet—their boxes are buried deeper. The Mystery row directly under the Panels is your lifeline; you must tap it to find more Reds and Yellows.

The imbalance is that you need many Red and Yellow marbles, but the visible supply is tiny. If you drop a Purple or Green now, it will sit on the Conveyor Belt and jam the line because no matching box is active. So your early game is a careful dig: clear the visible Red and Yellow, then tap Mystery tiles to uncover more, always prioritizing Red and Yellow to clear the front boxes and shift the columns upward.

How to Beat Marble Sort Level 684 — Step-by-Step

Phase one: Feed the front boxes

1. Tap the Red cluster in the third slot of the top tray; route it to the Conveyor Belt and drop it into the leftmost Red box.
2. Tap the Yellow cluster in the fifth slot; guide it to the second-column Yellow box.
3. Leave the Purple, Green, Blue, and White marbles untouched—they are decoys for now.
4. Tap a Mystery tile directly above the empty space you just created; if it reveals Red or Yellow, drop it immediately.
5. Keep tapping Mystery tiles and feeding Reds and Yellows until the first three Red boxes and the Yellow box clear.
6. Once those clear, the lower columns shift, exposing Blue and White boxes; you can now drop the Blue and White marbles from your top tray.

Phase two: Crack the mystery row

1. Continue tapping Mystery tiles; you will occasionally pull Orange or Pink—park one or two on the far edges of the Conveyor Belt, but don't let them pile up.
2. As you clear more boxes, Orange and Pink boxes will appear in the lower columns; immediately feed them the loose marbles you pulled.
3. Keep your eye on the Panel counters; your only goal is to hit zero. Clear any box that has a matching color in the top tray, even if it feels inefficient.
4. By the time the counters are low, you should have dropped the Purple and Green marbles into their now-active boxes.

Phase three: Post-panel cleanup

1. When the Panels vanish, the real board appears: you'll see solid color clusters (mostly Red, with Green, Blue, White) and several striped multi-color blocks.
2. Examine each striped block: the color closest to the bottom edge drops first.
3. Match the striped blocks to the lower boxes—likely Pink, Red, Green, Yellow. If a striped block has a Yellow stripe ready, drop it to clear the Yellow box.
4. Look for large Red clusters in the top corners; whenever a Red box cycles to the front, send those Reds down.
5. Keep the Conveyor Belt sparse: only pull a striped block if you can use its first two colors immediately. Clear the remaining isolated groups, and the board folds.

Tips & tricks

• Always tap Mystery tiles in pairs—if the first tile gives a color you don't need, the second might give the one you do.
• When you see a striped block, check the bottom stripe first; that's the color you'll get on the first drop.
• Keep the Conveyor Belt as empty as possible; a single unused marble can block a critical drop.

Common mistakes

• Dropping Purple or Green early—they'll jam the belt because their boxes aren't active.
• Pulling multiple striped blocks at once—you'll flood the belt and lose control.
• Ignoring the Mystery row—you need those hidden Reds and Yellows to clear the 23-count Panels.

Marble Sort Level 684 FAQ

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